import logging

from flask import current_app, render_template, session, jsonify, request, g

from info import redis_store, db
from info.models import User, News, Category
from info.modules.index import index_blue
from info.utils.commons import user_login_data
from info.utils.response_code import RET


# 首页新闻列表
# 请求路径：/newslist
# 请求方式：GET
# 请求参数：cid,page,per_page
# 返回值：data数据
@index_blue.route('/newslist')
def news_list():
    # 1、获取参数
    cid = request.args.get("cid", "1")
    page = request.args.get("page", "1")
    per_page = request.args.get("per_page", "10")
    # 2、参数类型转换
    try:
        page = int(page)
        per_page = int(per_page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1
        per_page = 10
    # 3、分页查询
    try:
        # 判断新闻的分类是否为1
        # if cid == "1":
        #     paginate = News.query.order_by(News.create_time.desc()).paginate(page, per_page, False)
        # else:
        #     paginate = News.query.filter(News.category_id == cid).order_by(News.create_time.desc()).paginate(page,per_page,False)
        filters = []
        filters.append(News.status==0)
        if cid != "1":
            filters.append(News.category_id == cid)
        paginate = News.query.filter(*filters).order_by(News.create_time.desc()).paginate(page, per_page, False)

    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="获取分页数据失败")

    # 4、获取到分页对象中的属性，总页数，当前页，当前页的对象列表
    total_page = paginate.pages
    current_page = paginate.page
    items = paginate.items
    # 5、将对象列表转成字典列表
    new_list = []
    for news in items:
        new_list.append(news.to_dict())
    # 6、携带数据，返回相应
    return jsonify(errno=RET.OK, errmsg="获取新闻成功", totalPage=total_page, currentPage=current_page, newsList=new_list)


@index_blue.route("/",methods=["GET","POST"])
@user_login_data
def show_index():
    # 1、获取用户的登录信息
    user_id = session.get("user_id")
    # 2、通过user_id取出用户对象
    user = None
    if user_id:
        try:
            # user = User.query.get("user_id")
            user = db.session.query(User).filter(User.id == user_id).first()
        except Exception as e:
            current_app.logger.error(e)
    # 3、查询热门新闻，根据点击量，查询前十名
    try:
        news = News.query.order_by(News.clicks.desc()).limit(10).all()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="获取新闻数据失败")
    # 4、将新闻对象列表转成字典列表
    news_list = []
    for item in news:
        news_list.append(item.to_dict())

    # 5、查询所有的分类数据
    try:
        categories = Category.query.all()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg="获取分类失败")
    # 6、将分类的对象列表转成，字典列表
    category_list = []
    for category in categories:
        category_list.append(category.to_dict())
    # 3、拼接用户信息，渲染页面
    data = {
        "user_info": user.to_dict() if user else "",
        "news": news_list,
        'categories': category_list
    }
    return render_template("news/index.html", data=data)


# 处理网站logo
@index_blue.route('/favicon.ico')
def get_web_logo():
    return current_app.send_static_file("news/favicon.ico")


# 统一返回404页面
@index_blue.route("/404")
@user_login_data
def page_not_found():
    data = {
        "user_info": g.user.to_dict() if g.user else ""
    }
    return render_template("news/404.html",data=data)